Efficient representation of 3D meshes with multiple attributes
09/10
10/07
11/01
11/07
3
4
16
201x
Amd.2
Multiresolution mesh coding
10/07
11/01
11/07
12/01
3
4
25
2009
Amd.1
Scalable complexity 3D mesh coding for 3DG compression model
09/07
09/10
10/04
10/10
3
4
27
2009
Amd.3
Conformance for scalable complexity 3D mesh coding in 3DG compression model
10/01
10/04
11/01
3
1.4Room allocation
3DGC: 3415
1.5Allocation of contributions
Note: due to the absence of several delegates the discussions took place by email and audio conferences. Several contributions (indicated in the table below) were postponed for being discussed during the next meeting.
N°
Title
Schedule
Observation
D1
Monday
D1
MPEG Plenary
09:00~11:30
Lunch Break
13:00~14:00
3DG Plenary
Roll call, Agenda, Goals, FAQ, Awareness Event etc.,
Performance compression between 3DMeshCodec (Technicolor) and 3DMCE
A codec that uses the redundancy of repetitive structures and may bring benefits of up to 92% compression improvement
Resolution: Integrate the codec on the benchmarking platform to compare with recent 3DG codecs.
Mary-Luc Champel
15:00 – 16:00
m18424 Initial ideas for texturing support in MR3DMC
Summary: Automatic generate and encode textures in a multiresolution way. There are two modules: texture adaptation and skin transplant. Similar as for mesh, a corse texture is obtained. However, there is a conversion of a texture into a fine tune representation. There is a specific unwrapping method that has the following proprieties: it preserves the angles (there is no deformation of the triangles), therefore the unwrapping is unique and deterministic. The skin transplant allows to choose the pixel of the coarse texture by projecting each 3D point of the course mesh (not only the mesh vertices) to the fine mesh and taking the color from the projection.
Resolution: Continue the investigation, obtain the coarse texture, investigate on coding of textures.
The definition of the bitstream structure (this structure is not supporting the view dependent). The partition consists in spatial LODs that contain Quality LODs. The header contains information related to the mesh size (no of cords, normals, … for the fine resolution one) and quantization steps.
Minsu Ahn
17:25 – 18:00
D2
Tuesday
D2
Reconfigurable Graphics Coding
m18225, Contribution of 3DMC FUs for RGC framework
Summary: the FUs for 3DMC + definition of TOKENs + design of networks.
The FUs + def of TOKEN should go in GTL.
Resolution: issue the WD 3.0 for RGC containing the following sections:
GTL: definition of FUs + TOKEN
FU network description for different tools (3DMCe)
Implementation (attached to the document as source code as well)
Seungwook Lee, Bon Ki Koo, Minsoo Park, Sinwook Lee, Sowon Kim, Euee S. Jang
Summary: The document is based on the existent RVC tutorial. The XML FU network schema is defined in MPEG B. There are several tools that allow to specify a decoder.
A codec development process is given as example, proposing to start from a top level diagram. One idea to design FUs is to start from the RefSoft. The bitstream parser FU is implementing the entropy decoder. The FUs are described textually. One C/C++ example of a FU is provided.
RSM is the RVC Simulation model.
Case study: 3DMC: the triangle decoder is inside the parser FU. There are additional 5 algorithmic FUs.
Supporting tools for RGC framework: ORCC, Hopes.
Minsoo Park , Seungwook Lee , Bon Ki Koo , Hyunok Oh , Sinwook Lee , Sowon Kim , Taehee Lim , Hyungyu Kim , Euee S. Jang
09:00~10:30
Multi-Resolution 3D Mesh Coding (MR-3DMC)
WD2.0 Supported features and additional needs
4 of 6 requirements are now supported: lossless connectivity, spatial scalability, quality scalability and near lossless encoding. The remaining two are view dependent scalability and support for multi-attributes per vertex.
Resolution: add in the CE the description of what should be done to investigate the support for the two remaining requirements.
Minsu Ahn
11:30 – 12:00
Lunch Break
12:00~14:00
MPEG-V
m18449 Proposed changes for validation rules of MPEG-V Part 7
These are some user characteristics in DIA (MobilityCharacteristics, Destination).
There is a PlaceType already in MPEG-7 that can be used as a basis for DevicePositionType.
Resolution: The position sensors can be used and the engine will make the connection between the sensors and the real users. There is no need to define the presence and proximity sensors.
AhG mandate: Identify what it can be reused from MPEG-7 and MPEG-21 DIA for location (this was transformed in a MPEG resolution).
Jean H.A. Gelissen , Herman Tuininga
14:10-15:10
FDIS(s) review
FCD for RefSoft and Conformance will be generated by Marcus from the schemas.
15:10-15:30
Technical corrections on MPEG-V
A new schema is proposed for VWOEventType.
Sanghyun Joo
Biosensors.
Jae Joon Han
Multi-pointing, Gaze, Wind.
All the three sensors were discussed.
Resolution: add the capabilities for all of them
Descriptions for social network services
Summary: discussions on the need of having user characteristics in MPEG=V.
Resolution: this is an important issue for MPEG but in the past both MPEG-7 and MPEG-21 already specified related data format. Contributions on evaluating them for the scope of MPEG-V are encouraged.
Sanghyun Joo
17:30 – 18:00
Joint with Req
D3
Wednesday
D3
MPEG Plenary
09:00~11:00
RGC
An animated meeting on the RVC/RGC meeting related to the specification language. The outcome was that there is a need to document the requirements of such a language.
Issue re-discussed in a meeting hold Friday morning and documented below.
Marius Preda
11:00 – 13:00
Lunch Break
13:00~14:00
MPEG-V
Deadline for announcing the participation: 2010/10/29
Flyer draft at the end of the meeting / Final version in 2 weeks
Date: January 27, 2011, 10h00 to 17h00
Demonstrations:
Samsung (intelligent camera, bringing sensibility in a virtual world, 3D demo),
ETRI (motion chair, multi-sensory experience, 3D demo),
GIST (The Haptic Experience)
Technicolor (Dynamic Multiresolution Rendering)
Institut TELECOM (Remote gaming & Virtual worlds, mobile 3D graphics)
Myongji University (Authoring tools of Sensory Effects)
Capturing and controlling the real world (Part 2 & 5) (Kyongro) 20m
Sensory effects (Part 3) (Christian) 20m
Interoperability with virtual worlds (Part 4) (Jae Joon) 20m
Importance of interoperability (invited speaker Yesha, Metaverse1) 15 m
No registration fee is needed to participate to the meeting. We’ll have a web page to register the presence.
14:00 – 15:30
with S
AFX
4th Edition
Only small progress because of lack of time. Homework for the editors.
Marius Preda
15:30 – 16:00
D4
Thursday
MPEG-V
Review all the action points
Output documents:
FDIS for Part 2, 3, 4, 5, 6 OK
FCD for Part 7 Accepted.
WDs 2.0: (editing period of 4 weeks, keep inside only what exists today)
Marius Preda
9:00~9:30
MPEGV & MPEG-U
A way to declare an interface to have communication between the scene and outside. Regardless on what is inside the scene, an interface is declared for communication, with the possibility to reply. The problem formulation: the VO should be able to carry behavior information from one virtual world to another. This behavior may be represented by using the scripting language. MPEG-U part 1 is not the answer to the problem since it is specifying the communication interface.
Why MPEG-U Part 2 is not belonging to MPEG-V?
In the use case of gesture recognition, there is a basic sensor of detecting the feature points (MPEG-V Part 5) followed by an interpretation of it (such as recognizing a circle), that is in MPEG-U part 2
9:30~10:00
3DG
Multiresolution WD2.0 review
AP: investigate on the integration between the cascaded quantization and the bitplane coding of the KLT method.
Finalize during the editing period the QualityLODData class
RGC: update of the core experiment description but accepted almost in the form that was proposed yesterday.
RGC/RVC a document in the requirements that the specification language should fulfill was presented, discussed and accepted. The document is registered as an input contribution m18614 “Proposed requirements for RVC and RGC specification language and solution”
A resolution asking NBs to comment on it was issued.
